More than $10,000 worth of black market alcohol has been crushed into a pulp of red, alcohol mud by police in Western Australia's Kimberley amid a crackdown on the so-called sly grog trade.

There has been a renewed focus this year on stopping the flourishing trade in WA's north, where entrepreneurial locals and those looking for alcohol have been trying to find ways around the region's patchwork of liquor restrictions.

On Tuesday morning at the Broome rubbish tip, Sergeant Matthew Hartfield stacked up about 500 litres of seized alcohol and watched as it was pulverised by bulldozer.

"All the stuff you saw destroyed today was as a result of convictions in court, and as a result it's been ordered for destruction," he said.

"Illegal alcohol is causing harm throughout the Kimberley. This is just a small part of what's been destroyed around the region.

"There's been a lot in Warmun and Fitzroy Crossing too, but this stuff is what's coming out of Broome at the moment."

A fresh focus on intercepting the alcohol as it leaves Broome, rather than after it has reached its destination, has seen an increase in convictions and confiscations in recent months.

The latest haul included about 40 cartons of beer and 50 bottles of wine and spirits.

As the bulldozer drove back and forward over the bottles and cartons, the sweet smell of rum filled the air and frothy beer spurted from pierced cans.

Bottle of spirits selling for up to $500: police

Sergeant Hartfield said the business model of sly groggers was based on bulk alcohol purchases in the major towns of Kununurra, Derby and Broome, where takeaway alcohol sales were relatively relaxed.

"From there it's either put in vehicles or on buses or through trucks and it ends up in remote communities," he said.

"What we are trying to do is disrupt that trade through vehicle stops, investigations, search warrants, and from that we can actually get a fairly good success rate now in relation to what we seize and what convictions we get in court."

Enormous mark-ups are put on black market alcohol, with the retail price usually doubled or tripled.

Police have recently encountered bottles of spirits selling for as much as $500 in some remote communities.

It is estimated the alcohol crushed in Broome would have been bought for about $5,000, and would have been sold from houses and cars for about $13,000.

The sly grog trade has proven a challenging one to stamp out, as the law requires police to be able to prove that people transporting large volumes of alcohol are intending to on-sell for profit.